Tomographic imaging plays an important role in medical decision making. For many applications, image segmentation is needed to perform quantatative analysis of medical image data. The goal of this work was to assess the utility of deep convolutional neural networks for volumetric image data segmentation. For this purpose several deep convolutional neural network frameworks and network architectures were investigated and compared in the context of cerebellum segmentation in volumetric head and neck PET-CT scans. Our results showed that the Isensee network architecture produced the most accurate segmentations, and that the utilization of an exponential learning rate decay combined with data augmented for training were beneficial to the performance of the network. We determined that the CT channel of the PET-CT images was not beneficial enough to warrant its inclusion in the training process. In addition, the feasibility of lung segmentation in volumetric CT scans was demonstrated and assessed. In summary, the selected deep convolutional neural network approach represents a suitable approach for volumetric medical image data segmentation.
Machine Learning Medical Imaging Convolutional Neural Networks Deep Learning Head and Neck Cancer PET-CT
Details
Title: Subtitle
Segmentation of volumetric medical image data using deep convolutional neural networks
Creators
Timothy John Linhardt
Contributors
Reinhard R Beichel (Advisor)
Andreas Wahle (Committee Member)
Brian J Smith (Committee Member)
Resource Type
Thesis
Degree Awarded
Master of Science (MS), University of Iowa
Degree in
Electrical and Computer Engineering
Date degree season
Summer 2018
Publisher
University of Iowa
DOI
10.17077/etd.006120
Number of pages
xii, 111 pages
Copyright
Copyright 2018 Timothy John Linhardt
Language
English
Description illustrations
illustrations (some color)
Description bibliographic
Includes bibliographical references (pages 106-111).
Academic Unit
Electrical and Computer Engineering
Record Identifier
9984097173102771
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Segmentation of volumetric medical image data using deep convolutional neural networks